An electric generator contains a coil of 140 turns of wire, each forming a rectangular loop 71.2 cm by 22.6 cm. the coil is placed entirely in a uniform magnetic field with magnitude b = 4.32 t and initially perpendicular to the coil's plane. what is in volts the maximum value of the emf produced when the loop is spun at 1120 rev/min about an axis perpendicular to the magnetic field?

11405Volt

Explanation:

To solve this problem it is necessary to use the concept related to induced voltage or electromotive force measured in volts. Through this force it is possible to maintain a potential difference between two points in an open circuit or to produce an electric current in a closed circuit.

The equation that allows the calculation of this voltage is given by,

Where

B = Magnetic field

A= Area

N = Number of loops

= Angular velocity

Our values previously given are:

We need convert the angular velocity to international system, then

Applying the equation for emf, we replace the values and we will obtain the value.

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach